Suggestion: add some variety to ability levels

Someone feel free to correct me, but it seems like we have pretty much all champs (maybe 1-3 exceptions) with abilities that max out at 5-5-5-3 for a total of 18.

Wouldn't it make more sense for some champs to allow for any number of abilities that total 18? Set requirements of no ult before level 6 and no closer than every 3 levels (developer rules) so you could do a skill with 6-3-3-4, where you can only level up R at level 6, 9, 12 and 15 but any other abilities can be leveled at any time. Why do this? Simple, some champs have utility abilities that really don't need to be leveled up (and doing so is nearly no benefit). This way we can make a utility ability only 1-3 levels (just enough to activate it) and then the primary abilities could get up to 6-8 levels and have a larger scale range.

Can't think of examples, but I'd love to hear some from people about why this would or would not work. It's a pretty simple suggestion that could open up a lot of options for champions. Yea it can be hard to remember who has how many... not really, there are dots under each ability, it blocks out ones you can't level up and each champ has a different order the abilities should be leveled up in. There's already a lot to remember, this really won't change much other than relearning the order.